[Event "Villa Ballester op"]
[Site "Villa Ballester"]
[Date "1992.??.??"]
[Round "5"]
[White "Caseres, S."]
[Black "Derman, O."]
[Result "0-1"]
[ECO "A08"]
[PlyCount "68"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d3 e5 5. Nbd2 Nf6 6. 0-0 Be7 7. e4 d4 8. Nc4 Qc7 9. a4 0-0 10. Nh4 Ne8 11. Nf5 Nd6 12. Nfxd6 Bxd6 13. f4 f5 14. fxe5 Bxe5 15. Nxe5 Qxe5 16. Bf4 Qe7 17. Re1 fxe4 18. Bxe4 Qf6 19. Qh5 h6 20. Qxc5 Be6 21. Bxc6 bxc6 22. Qxc6 Rae8 23. Qg2 Qf7 24. Bd6 Bd5 25. Rxe8 Rxe8 26. Qf2 Qe6 27. Bc5 Bb7 28. h4 Qd5 29. Kh2 Qxc5 30. c3 Qh5 31. Re1 Rxe1 32. Qxe1 Qf3 33. Qg1 h5 34. g4 hxg4 0-1

[Event "Villa Ballester op"]
[Site "Villa Ballester"]
[Date "1992.??.??"]
[Round "6"]
[White "Derman, O."]
[Black "Albores, Pablo"]
[Result "1/2-1/2"]
[ECO "B06"]
[PlyCount "84"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bc4 Bg7 5. Bb3 0-0 6. Nge2 Nc6 7. 0-0 h6 8. f3 e5 9. Be3 Na5 10. Qd2 Nxb3 11. axb3 Kh7 12. dxe5 dxe5 13. Qxd8 Rxd8 14. Rfd1 Rxd1+ 15. Rxd1 Bd7 16. Nd5 Nxd5 17. Rxd5 Bc6 18. Rd2 Bf6 19. Nc3 b6 20. Nd5 Bxd5 21. Rxd5 Rd8 22. Rxd8 Bxd8 23. b4 c6 24. c4 Bg5 25. Bf2 Bc1 26. b3 Bd2 27. b5 c5 28. Kf1 Bc3 29. Ke2 Kg7 30. Kd3 Bd4 31. Be1 g5 32. h3 f6 33. Bd2 Kf7 34. b4 Ke6 35. bxc5 Bxc5 36. h4 Kd6 37. h5 Ke6 38. g4 Kd6 39. Kc3 Kc7 40. Kb3 Kb7 41. Ka4 Kb8 42. Bb4 Kc8 1/2-1/2

[Event "Villa Ballester op"]
[Site "Villa Ballester"]
[Date "1992.??.??"]
[Round "2"]
[White "Derman, O."]
[Black "Costa Colombo, D."]
[Result "0-1"]
[ECO "C66"]
[PlyCount "64"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. c3 Bd7 5. 0-0 Nf6 6. Re1 Be7 7. d4 0-0 8. Nbd2 Nxd4 9. cxd4 Bxb5 10. Qb3 c6 11. dxe5 dxe5 12. Nxe5 Nd7 13. Ndf3 Nxe5 14. Nxe5 Bd6 15. Nf3 a5 16. Be3 a4 17. Qc2 a3 18. b3 Bb4 19. Red1 Qe7 20. e5 h6 21. Qe4 Be2 22. Bxh6 Bxf3 23. gxf3 gxh6 24. Kh1 f5 25. Qc4+ Kh7 26. Rd4 Bc5 27. Rd2 Rfd8 28. Re2 Rd5 29. f4 Qe6 30. Rc1 Rad8 31. Rg1 Rg8 32. Rc1 Qg6 0-1

[Event "Villa Ballester op"]
[Site "Villa Ballester"]
[Date "1992.??.??"]
[Round "8"]
[White "Derman, O."]
[Black "Klibanski, La"]
[Result "0-1"]
[ECO "C06"]
[PlyCount "74"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 b6 4. Bd3 Ba6 5. Ndf3 Bxd3 6. Qxd3 Nf6 7. e5 Nfd7 8. Ne2 c5 9. c3 Nc6 10. 0-0 Be7 11. Be3 0-0 12. Rac1 c4 13. Qc2 b5 14. Nd2 b4 15. f4 bxc3 16. bxc3 Rb8 17. f5 Ba3 18. Rb1 Ne7 19. Qa4 Rxb1 20. Nxb1 Nxf5 21. Rxf5 exf5 22. Qxa3 Qh4 23. Qc1 Rb8 24. Ng3 g6 25. Nd2 Nf8 26. Nf3 Qe7 27. Bg5 Qb7 28. h3 Ne6 29. Kh2 Qb1 30. Ne2 Qxa2 31. Ng3 Rb1 32. Qe3 Rb2 33. Nh4 Rf2 34. Kg1 f4 35. Qxf2 Qxf2+ 36. Kxf2 fxg3+ 37. Kxg3 Nxg5 0-1

[Event "Villa Ballester op"]
[Site "Villa Ballester"]
[Date "1992.??.??"]
[Round "1"]
[White "Farina, O."]
[Black "Derman, O."]
[Result "0-1"]
[ECO "D36"]
[PlyCount "92"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Bg5 e6 5. Nf3 Be7 6. e3 Nbd7 7. cxd5 exd5 8. Bd3 0-0 9. Qc2 h6 10. h4 Re8 11. 0-0-0 Qa5 12. g4 hxg5 13. hxg5 Ne4 14. Nxe4 dxe4 15. Bxe4 Qxa2 16. Bh7+ Kf8 17. Bg6 fxg6 18. Qxg6 Qc4+ 19. Kb1 Kg8 20. Qxe8+ Bf8 21. d5 Nf6 22. gxf6 Bf5+ 23. gxf5 Rxe8 24. fxg7 Qe4+ 25. Ka1 Bxg7 26. f6 Qxf3 27. fxg7 Kxg7 28. Rdg1+ Kf6 29. Rh4 Ke5 30. Rg5+ Kd6 31. dxc6 bxc6 32. Rg6+ Kc5 33. Rg5+ Kd6 34. Rf4 Qh1+ 35. Ka2 Re5 36. Rf6+ Ke7 37. Rxe5+ Kxf6 38. f4 Qc1 39. b4 Qc3 40. Rc5 Qd2+ 41. Ka1 Qxe3 42. Rxc6+ Kf5 43. Rc8 Qa3+ 44. Kb1 Qxb4+ 45. Kc2 Kxf4 46. Kd3 Qb1+ 0-1

[Event "Villa Ballester op"]
[Site "Villa Ballester"]
[Date "1992.??.??"]
[Round "3"]
[White "Juanes, Marcelo Aleja"]
[Black "Derman, O."]
[Result "1-0"]
[ECO "C36"]
[PlyCount "77"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. e4 e5 2. f4 exf4 3. Nf3 d5 4. exd5 Nf6 5. Bb5+ c6 6. dxc6 bxc6 7. Be2 Bd6 8. 0-0 0-0 9. d4 h6 10. Nbd2 Bg4 11. Nc4 g5 12. Nfe5 Bxe5 13. Nxe5 Bxe2 14. Qxe2 Qxd4+ 15. Kh1 Re8 16. Nf3 Qd5 17. Qf2 Nbd7 18. Qd4 Qf5 19. Bd2 c5 20. Qa4 Nb6 21. Qb5 Nbd7 22. Rae1 Qd5 23. Bc3 Rxe1 24. Rxe1 Ne4 25. Rxe4 Qxe4 26. Qxd7 Re8 27. h3 Qe2 28. Qd6 Qe6 29. Qxc5 g4 30. hxg4 Qxg4 31. Qd4 Kf8 32. Qh8+ Ke7 33. Qf6+ Kf8 34. Qxh6+ Ke7 35. Bb4+ Kd8 36. Qd6+ Kc8 37. Qc6+ Kd8 38. Qa8+ Kd7 39. Qb7+ 1-0

[Event "Villa Ballester op"]
[Site "Villa Ballester"]
[Date "1992.??.??"]
[Round "7"]
[White "Martin Del Campo C, Roberto Abel"]
[Black "Derman, O."]
[Result "1/2-1/2"]
[ECO "D09"]
[WhiteElo "2410"]
[PlyCount "64"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. g3 Bg4 6. Bg2 Bb4+ 7. Bd2 Qe7 8. 0-0 0-0-0 9. Bg5 f6 10. exf6 gxf6 11. Bf4 Qe4 12. Qd3 Qe6 13. a3 Bf5 14. Qb3 Bd6 15. Bxd6 Rxd6 16. Nbd2 Qxe2 17. Rfe1 Qd3 18. Bh3 Kb8 19. Bxf5 Qxf5 20. Re8+ Nd8 21. Rae1 Kc8 22. Rf8 Re6 23. Rxe6 Qxe6 24. Qa4 Qd7 25. Qxa7 Qe7 26. Qa8+ Kd7 27. Qa4+ c6 28. Rxd8+ Kxd8 29. Nxd4 Qe1+ 30. Nf1 Kc7 31. b4 Ne7 32. Qa5+ Kb8 1/2-1/2

[Event "Villa Ballester op"]
[Site "Villa Ballester"]
[Date "1992.??.??"]
[Round "9"]
[White "Ortega Morales, Javier"]
[Black "Derman, O."]
[Result "1-0"]
[ECO "A02"]
[PlyCount "115"]
[EventDate "1992.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 1998"]
[Source "ChessBase"]
[SourceDate "1997.11.17"]
[SourceVersion "1"]
[SourceVersionDate "1997.11.17"]
[SourceQuality "1"]

1. f4 Nf6 2. Nf3 d6 3. b3 g6 4. Bb2 Bg7 5. e3 c5 6. Be2 Nc6 7. 0-0 0-0 8. Qe1 Bf5 9. Na3 Nb4 10. d3 d5 11. Nh4 Qd7 12. Nf3 Nc6 13. Ne5 Nxe5 14. fxe5 Ng4 15. Bxg4 Bxg4 16. h3 Bf5 17. g4 Be6 18. Qg3 b5 19. c3 Rac8 20. Nc2 Qc7 21. d4 a5 22. Ne1 c4 23. Qg2 b4 24. Rc1 Qd7 25. Nf3 h6 26. bxc4 Rxc4 27. cxb4 axb4 28. Qd2 Rfc8 29. Rxc4 Rxc4 30. Rc1 Qc6 31. Ne1 Qa4 32. Nd3 Qxa2 33. Nxb4 Qb3 34. Nd3 Rxc1+ 35. Nxc1 Qa4 36. Nd3 Qd7 37. Nf4 h5 38. gxh5 Bxh3 39. Qh2 Qg4+ 40. Kf2 Qh4+ 41. Qg3 Qxg3+ 42. Kxg3 Bf5 43. Nxd5 Bf8 44. hxg6 Bxg6 45. Ba3 e6 46. Nf6+ Kg7 47. Bxf8+ Kxf8 48. Kf4 Ke7 49. e4 Kd8 50. Kg4 Ke7 51. Kg5 Kd8 52. Kh6 Kc7 53. Kg7 Kc8 54. Kg8 Kc7 55. d5 exd5 56. exd5 Kc8 57. d6 Kd8 58. Kf8 1-0

[Event "Buenos Aires Stentor"]
[Site "Buenos Aires"]
[Date "1977.??.??"]
[Round "9"]
[White "Derman, O."]
[Black "Cranbourne, Carlos Leon"]
[Result "0-1"]
[ECO "B97"]
[PlyCount "86"]
[EventDate "1977.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Nb3 Nbd7 9. Qf3 Be7 10. 0-0-0 Qc7 11. g4 b5 12. Bxf6 Nxf6 13. g5 Nd7 14. a3 Rb8 15. h4 b4 16. axb4 Rxb4 17. h5 Nc5 18. Nxc5 Qxc5 19. Nb1 0-0 20. h6 g6 21. Qc3 f6 22. Qxc5 dxc5 23. gxf6 Rxf6 24. f5 gxf5 25. exf5 exf5 26. Nc3 Rg6 27. Kb1 Kf7 28. b3 Be6 29. Bxa6 Bxb3 30. cxb3 Rxa6 31. Kc2 Rg4 32. Rdg1 Rxg1 33. Rxg1 Rxh6 34. Nd5 Bd6 35. Rf1 Ke6 36. Ne3 f4 37. Nc4 Kf5 38. Rd1 Rh2+ 39. Kc1 Be7 40. Re1 Bg5 41. Re5+ Kg4 42. Rxc5 f3+ 43. Kd1 Rh1+ 0-1

[Event "Buenos Aires Stentor"]
[Site "Buenos Aires"]
[Date "1977.??.??"]
[Round "3"]
[White "Derman, O."]
[Black "Curatola, A."]
[Result "1-0"]
[ECO "B15"]
[PlyCount "103"]
[EventDate "1977.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Be3 Bd6 7. Bd3 0-0 8. Ne2 Re8 9. 0-0 Nd7 10. c4 c5 11. Qc2 g6 12. dxc5 Bxc5 13. Bxc5 Nxc5 14. Rad1 Nxd3 15. Rxd3 Bf5 16. Rxd8 Bxc2 17. Rxa8 Rxa8 18. Nf4 Rd8 19. Nd5 Kg7 20. Re1 Rd7 21. f4 Bf5 22. Re7 Rxe7 23. Nxe7 Bd3 24. c5 Bc4 25. a3 Kf8 26. Nc8 a6 27. Kf2 Bd5 28. g3 Ke8 29. Nb6 Bc6 30. Ke3 Ke7 31. Kd4 Ke6 32. Nc8 Bg2 33. Nd6 Bc6 34. b4 Ke7 35. a4 Ke6 36. b5 axb5 37. axb5 Bg2 38. Nc4 Bh1 39. Na5 Kd7 40. Nb3 Ke6 41. c6 bxc6 42. Nc5+ Kd6 43. b6 Bg2 44. Nb7+ Kd7 45. Kc5 Kc8 46. Nd6+ Kb8 47. Nxf7 Kc8 48. Nd6+ Kb8 49. Ne8 f5 50. Nf6 h6 51. Ng8 g5 52. Nxh6 1-0

[Event "Buenos Aires Stentor"]
[Site "Buenos Aires"]
[Date "1977.??.??"]
[Round "5"]
[White "Derman, O."]
[Black "Serrato, R."]
[Result "1/2-1/2"]
[ECO "C08"]
[PlyCount "71"]
[EventDate "1977.??.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "ARG"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nf6 6. c3 Bg4 7. Bd3 cxd4 8. cxd4 Nc6 9. Qa4 Bd6 10. 0-0 0-0 11. h3 Bh5 12. a3 Re8 13. b4 Ne4 14. Bb2 Bf4 15. Qc2 Rc8 16. Nxe4 Nxd4 17. Nf6+ gxf6 18. Bxh7+ Kg7 19. Qd3 Nxf3+ 20. gxf3 Rh8 21. Bf5 Bg6 22. Kg2 Rh5 23. Bxg6 Rg5+ 24. Kh1 fxg6 25. Rg1 Qd7 26. Rg4 Rxg4 27. fxg4 Be5 28. Bd4 Rc4 29. Bxe5 fxe5 30. Rd1 Rd4 31. Qe2 Rxd1+ 32. Qxd1 d4 33. Qd3 Kf6 34. Kg1 Qc6 35. f3 b6 36. h4 1/2-1/2

